Suspect poisoning? US: ASPCA Poison Control (888) 426-4435 · UK: 01202 509 000 · Severe symptoms → nearest emergency vet now.

My 15 kg dog just ate two raw, unpeeled water chestnuts I dropped while cooking — what's my first step?

Dogs · Food safety

Last reviewed: 2026-09-05 · Reference ranges: ASPCA, Pet Poison Helpline & Merck Veterinary Manual

Short answer

First, check if he actually swallowed them whole or just crunched them up. The tough, brown skin is fibrous and not toxic, but it can be a choking hazard or cause a minor stomach ache. For a dog his size, two small chestnuts are unlikely to cause a blockage. Your immediate job is to watch him for the next hour for any gagging, coughing, or signs of abdominal discomfort like a tucked belly. Offer a small meal of his regular kibble to help move things along. If he acts perfectly normal, eats, and drinks, you can likely just monitor him at home.

Water chestnut — Food safety facts

Safe to share · Dogs · full breakdown on the linked food page

Peeled and sliced, raw or cooked.

Dogs and cats carry the same rating (Safe to share), so the notes below hold for either pet.

Water chestnut is not toxic to dogs. The real limit is calories, fat and salt, so treat it as a small extra alongside the normal ration rather than a meal in itself.

There is no poisoning risk here, and the usual problem is simply eating too much at once: a heavy fat or salt load can bring on loose stools or a single vomit. Offer water, keep an eye on the pet for 24 hours, and do not induce vomiting.

Why these cautions matter

Raw animal protein carries Salmonella and E. coli risk, and those bacteria can spread to the people in the household too.

Water chestnut can stay on the rotation, but only as an extra mouthful: keep the rest of the day's food unchanged and watch the next walk and the stool that comes with it.

The full verdict, portion guidance and serving notes are collected on the Water chestnut food facts page.

Open the full food page: Water chestnut food facts →